Extenders for paints - specifications and methods of test - cristobalite 油漆调和料.规范和试验方法.白硅石
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Extenders for paints - specifications and methods of test - part 14 : cristobalite iso 3262 - 14 : 2000 ; german version en iso 3262 - 14 : 2000 涂料用填充剂.规范和试验方法.第14部分:白硅石
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It is found that it is very difficult to separate the cristobalite and quartz with similar size with montmorillonte from montmorillonte 研究证实,与蒙脱石粒度相近的方石英和石英微粒等杂质很难去除。
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Montmorillonite , quartz and cristobalite can be corroded by sodium hydroxide solution , but will introduce new impurity phase similar to zeolite 氢氧化钠溶蚀法会对蒙脱石、石英和方石英同时产生溶蚀,引入新的物相杂质。
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Products on cvd sic after oxidation were investigated using xrd . crystallization was observed in silicon dioxide film produced by oxidation of cvd sic after oxidation in air above 1100 @ . from xrd pattern , a strong diffraction peak of a - cristobalite was observed ( 4 )采用xrd对cvdsic在空气中氧化后的产物进行了研究,发现cvdsic在空气中高温( 1100 )氧化时,氧化产物sio _ 2会发生晶化现象,氧化产物中存在方石英。